Diameter Of A Basketball Hoop (Check Out The Diameter Of A Modern Basketball Hoop!)

Last Updated on March 25, 2021 by

The basketball hoop used by senior high, University players, and NBA professionals has a diameter of 18-inch, with a radius of 9 inches. However, there are slight differences in the rim measurements in international competitions. According to the rules specified by the International Basketball Federation, a standard basketball hoop should have a minimum inside diameter of 450 millimeters and a maximum of 459 millimeters. This measurement is approximate to 17.7 to 18 inches, which is same measurement with the NBA standard 9 inches radius. The rules guarding the circumference of the ball give room for a minimum of 29.4 inches and a maximum of 30.7 inches.

The game of basketball has a long, history that is rich dating to the late 19th century since the hoop was first created. The hoop and ball are the two main pieces of equipment used to play the game, and since then the hoop has evolved from a traditional basket into a technologically advanced rim built for performance and durability. The inventor of basketball, Dr. James Naismith, was born in 1861. Naismith grew up in Ontario, Canada, but later went to McGill University in Montreal for his degree. However, after finishing his studies, he moved to Massachusetts in 1891 to work in Springfield at the YMCA Training School, where the sport was invented. Peach baskets were the first basketball hoop used. These peach baskets were nailed to an elevated track. 


After about ten years that basketball was invented, the peach basket hoop was replaced by a metal rim and netting. Just like the peach basket, the netting was closed at the bottom, players will have to climb up and get the ball from the net anytime a player scores. However, there were changes in 1906, when the bottom of the net was cut out to allow free fall of the ball from the hoop. 

The Table Below Contains The Minimum And Maximum Inside Diameter Of Basketball Rims.

The Minimum Inside Diameter Of Basketball Rims450 millimeters
The Maximum Inside Diameter Of Basketball Rims459 millimeters

Can 2 basketballs fit in a hoop?

In the women category, most especially the WNBA, two basketballs will fit through the rim simultaneously. But in the men category, two basketball cannot fit into the same rim at the same time.

Is the NBA rim the same as the college rim?

Yea! The hoop size and distance off the floor are the same.

What’s The Regulation Height Of Any FIBA Basketball Hoop?

Basketball premiered on the athletics community stage in the 1936 Summer Olympics. James Naismith, that was the inventor of the game of basketball awarded medals to the winners. Since the game was played under the supervision of his, James used the rules of his associated with a 10-foot bin level. The FIBA, Federation Internationale de Basketball manages International Basketball following the summertime games in 1936. The height utilized than is also the same used up until right now.

Is the NBA Hoop bigger?

The rim is 10 feet off the ground for FIBA, NBA, junior high, WNBA, high school, and NCAA. Basketball Rims at every level of play are 18 inches in diameter. Also, at every level of play, backboards are the same size.

How much bigger is the hoop than the basketball?

A standard NBA basketball’s diameter ranges between 9.41 and 9.43 inches. However, a basketball hoop is 18 inches in diameter. So, the hoop is almost two times bigger than the basketball.

Closing Thoughts 

The bottom line is that all levels of basketball use a diameter of 18 inches with a radius of nine inches. We’ve come to the end of this informative article. We hope you were able to find resources in your quest to know the diameter of a basketball hoop. Please do not hesitate to contact us for questions or comments. Thanks! 

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